# The complete chloroplast genome and phylogenetic analysis of Artocarpus nitidus subsp. lingnanensis (Moraceae)

## TL;DR

This paper reports the first complete chloroplast genome of Artocarpus nitidus subsp. lingnanensis and clarifies its evolutionary relationships with related species.

## Contribution

The study provides the first complete chloroplast genome sequence for Artocarpus nitidus subsp. lingnanensis and establishes its phylogenetic position.

## Key findings

- The chloroplast genome is 161,009 bp long with a GC content of 35.79%.
- Phylogenetic analysis shows A. nitidus subsp. lingnanensis forms a distinct clade with four related Artocarpus species.
- The genome contains 132 genes, including 87 protein-coding genes, 37 tRNAs, and 8 rRNAs.

## Abstract

Artocarpus nitidus subsp. lingnanensis is an evergreen tree species bearing sour-sweet fruits. Although its economic and medicinal potential has been indicated by some phytochemical studies, the phylogenetic position of this species remains unclear. To address this, we sequenced and assembled its complete chloroplast genome for the first time. The genome with a total length of 161,009 bp and a GC content of 35.79%, displays the conventional quadripartite organization comprising four segments: an 89,552 bp large single-copy (LSC) region, a 20,093 bp small single-copy (SSC) region, and two 25,682 bp inverted repeat (IR) regions. Annotation identified 132 genes, encompassing 87 protein-coding genes, 37 tRNAs, and 8 rRNAs. Phylogenetic analysis revealed that A. nitidus subsp. lingnanensis forms a distinct clade with its closest relatives, A. petelotii, A. tonkinensis, A. hypargyreus, and A. gomezianus. This study provides the first complete chloroplast genomic resource for A. nitidus subsp. lingnanensis and offers valuable data for future research on genetic diversity and utilization.